Finding the Fourth Proportional to 1,624.30, 2,241.55 and 925.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624.30 : 2,241.55 = 925.72 : x
2. Step 2: Convert to fraction form
   1,624.30/2,241.55 = 925.72/x
3. Step 3: Cross multiply
   1,624.30x = 2,241.55 × 925.72
4. Step 4: Simplify right side
   1,624.30x = 2,075,047.67
5. Step 5: Solve for x
   x = 2,075,047.67/1,624.30
6. Step 6: Final answer
   x = 1,277.50